Pretreatment device for gear oil production

Abstract

The utility model relates to the technical field of gear oil production and processing, in particular to a pretreatment device for gear oil production. The pretreatment device for gear oil production comprises a storage tank, a blow-off pipe is mounted at the bottom of a conical tank body of the storage tank, and a blow-off valve group is mounted in the blow-off pipe. According to the pretreatment device for gear oil production provided by the utility model, when the blow-down valve group is in an initial state under the action of the opening and closing component, solid impurities and partial free water of the blow-down valve group are settled due to gravity, fall into the blow-down pipe through a gap between the piston column and the blow-down pipe, and are gathered above the dirt-bearing piston column; the opening and closing component is used for driving the oil sealing piston column and the dirt bearing piston column to descend, so that solid impurities and part of free water between the oil sealing piston column and the dirt bearing piston column can be quickly discharged, and meanwhile, the hidden danger that part of sediment floats and is mixed with base oil again due to the fact that the precipitated solid impurities are discharged is avoided; and then the blow-down valve group is restored to the initial state under the action of the opening and closing component.

Description

Technical Field

[0001] This utility model relates to the field of gear oil production and processing technology, and in particular to a pretreatment device for gear oil production. Background Technology

[0002] In the gear oil production process, the pretreatment of base oil plays a decisive role in the quality of the final product. During storage and transportation, base oil is easily contaminated with solid impurities (such as metal shavings and dust particles) and some free water due to external environmental influences and the sedimentation of its own components. If these impurities are not effectively removed and directly enter subsequent production processes, they will seriously affect the lubrication performance, antioxidant stability, and service life of the gear oil, and may even lead to accelerated wear and frequent failures in the gear transmission system. Therefore, solid impurities and some free water in the base oil are pretreated during gear oil production.

[0003] Currently, the mainstream gear oil base oil pretreatment in the industry mostly relies on the method of separating impurities by controlling the discharge through a single valve after the storage tank has been settled. However, this method is wasteful because the base oil is easily discharged with the impurities when the valve is open, and the seal may fail due to impurities when the valve is closed, affecting subsequent storage. At the same time, when the valve is open, some sediment may mix with the base oil, requiring time for settling.

[0004] Therefore, it is necessary to provide a new pretreatment device for gear oil production to solve the above-mentioned technical problems. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a pretreatment device for gear oil production.

[0006] The pretreatment device for gear oil production provided by this utility model includes a storage tank for storing base oil for gear oil production. The bottom of the storage tank has a downwardly convex conical structure, and a drain pipe is installed at the bottom of the conical tank body.

[0007] A drain valve assembly is installed inside the drain pipe, and the drain valve assembly includes a central connecting rod. The central connecting rod is located inside the drain pipe and is coaxially arranged with the drain pipe. An oil sealing piston and a sludge receiving piston are fixedly installed at the upper and lower ends of the central connecting rod, respectively. The top of the oil sealing piston is provided with a conical A-shaped surface with an upward convex structure, and the top of the sludge receiving piston is provided with a conical B-shaped surface with an upward convex structure. The bottom of the sludge receiving piston extends out of the drain pipe.

[0008] The drain pipe is also equipped with opening and closing components for driving the oil sealing piston and the sewage receiving piston to rise and fall.

[0009] Preferably, the pollution-accepting piston column is fixedly installed with two symmetrical curved guide plates at the bottom, and the other end of the curved guide plate is inserted into the limiting sliding groove opened on the outer wall of the blowdown pipe and is in sliding connection with the limiting sliding groove.

[0010] Preferably, the outer wall of the oil-sealing piston column and the pollution-accepting piston column is provided with a plurality of annular grooves distributed upward and downward, and a rubber sealing ring is sleeved in each annular groove.

[0011] Preferably, the opening and closing component comprises a U-shaped frame fixedly installed on the outer wall of the blowdown pipe, two vertically installed installation rods fixedly installed in the U-shaped frame, a sliding seat slidably arranged between the two installation rods, a spring sleeved on each installation rod, a side plate fixedly installed on the two sides of the sliding seat, a middle support fixedly arranged between the two side plates, and the middle support is fixedly connected with the bottom of the pollution-accepting piston column through screws.

[0012] Preferably, one end of the spring is fixedly connected with the inner bottom wall of the U-shaped frame, and the other end of the spring is fixedly connected with the lower surface of the sliding seat.

[0013] Preferably, a handle is fixedly installed between the bottoms of the two side plates.

[0014] Compared with the related art, the pretreatment device for gear oil production has the following beneficial effects:

[0015] Under the action of the opening and closing component, when the blowdown valve group is in the initial state, the solid impurities and part of the free water fall into the blowdown pipe due to gravity and the gap between the piston column and the blowdown pipe, and are gathered above the pollution-accepting piston column, then the oil-sealing piston column and the pollution-accepting piston column are driven to descend by the opening and closing component, at this time, the oil-sealing piston column slides into the blowdown pipe to seal the bottom of the storage tank, and the pollution-accepting piston column slides out from the bottom of the blowdown pipe, so that the solid impurities and part of the free water between the oil-sealing piston column and the pollution-accepting piston column can be quickly discharged, and at the same time, the hidden danger that the part of the precipitate floats up and mixes with the base oil again due to the discharge of the solid impurities that have been precipitated is avoided, then the blowdown valve group returns to the initial state under the action of the opening and closing component. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 Fig. 1 is a structural schematic diagram of a preferred embodiment of the pretreatment device for gear oil production provided by the utility model;

[0017] Figure 2 Fig. 2 is another structural schematic diagram of a preferred embodiment of the pretreatment device for gear oil production provided by the utility model;

[0018] Figure 3 Fig. 3 is a structural schematic diagram of another preferred embodiment of the pretreatment device for gear oil production provided by the utility model; Figure 1The structure schematic view of the installation of the drain pipe on the storage tank is shown.

[0019] Figure 4 For Figure 2 The connection structure schematic view of the drain valve group and the opening and closing part is shown.

[0020] Figure 5 For Figure 4 The structure schematic view of the drain valve group is shown.

[0021] Figure 6 For Figure 4 The structure schematic view of the opening and closing part is shown.

[0022] The figure mark: 1, the storage tank; 2, drain pipe; 2a, limit sliding groove; 3, drain valve group; 31, middle connecting rod; 32, oil sealing piston column; 321, conical A curved surface; 33, pollution bearing piston column; 331, conical B curved surface; 34, curved guide plate; 35, rubber sealing ring; 4, opening and closing part; 41, U-shaped frame; 42, mounting rod; 43, sliding seat; 44, side plate; 45, middle connecting frame; 46, spring; 47, handle. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples.It should be understood that the specific examples described herein are only used to explain the utility model, and are not used to limit the utility model.

[0024] The specific implementation of the utility model will be described in detail in combination with specific examples.

[0025] Please refer to Figures 1 to 6 The utility model discloses a pretreatment device for gear oil production, which comprises a storage tank 1 for storing base oil for gear oil production, a drain pipe 2, a drain valve group 3 and an opening and closing part 4.The bottom of the storage tank 1 is in a lower convex conical structure, and the conical tank body bottom of the storage tank 1 is provided with the drain pipe 2, and a supporting frame for supporting the storage tank 1 is arranged on the storage tank 1, so that the storage tank 1 can be stably in a vertical state, and the drain pipe 2 can be in a suspended state, so that the solid impurities and part of free water in the base oil can be settled to the drain pipe 2 at the bottom of the storage tank 1 due to gravity after the base oil is stored.

[0026] In the embodiment of the utility model, please refer to Figures 1 to 6The drain pipe 2 is provided with a drain valve group 3, and the drain valve group 3 comprises a middle connecting rod 31 which is coaxially arranged in the drain pipe 2, and the upper and lower ends of the middle connecting rod 31 are respectively fixedly provided with an oil sealing piston column 32 and a dirt bearing piston column 33, the top of the oil sealing piston column 32 is provided with a convex conical A curved surface 321, the top of the dirt bearing piston column 33 is provided with a convex conical B curved surface 331, and the bottom of the dirt bearing piston column 33 extends out of the drain pipe 2, and the drain pipe 2 is further provided with an opening and closing component 4 for driving the oil sealing piston column 32 and the dirt bearing piston column 33 to ascend and descend.

[0027] It should be noted that under the action of the opening and closing component 4, the drain valve group 3 is in the initial state, the oil sealing piston column 32 slides into the conical tank body of the storage tank 1, so that a gap is left between the oil sealing piston column 32 and the drain pipe 2, and at the same time, the upper part of the dirt bearing piston column 33 is located in the drain pipe 2, because the bottom of the storage tank 1 is a convex conical structure, so after the base oil in the storage tank 1 is left for a sufficient time, the solid impurities and part of the free water in the base oil will be settled by gravity and fall into the drain pipe 2 through the gap between the oil sealing piston column 32 and the drain pipe 2, and gather above the dirt bearing piston column 33, then the oil sealing piston column 32 and the dirt bearing piston column 33 are driven to descend by the opening and closing component 4, at this time, the oil sealing piston column 32 slides into the drain pipe 2 to seal the bottom of the storage tank 1, and the dirt bearing piston column 33 slides out of the bottom of the drain pipe 2, so that the solid impurities and part of the free water between the oil sealing piston column 32 and the dirt bearing piston column 33 can be quickly drained, and at the same time, it will not cause the hidden danger that the settled solid impurities will float up again and mix with the base oil due to the drainage, then the drain valve group 3 returns to the initial state under the action of the opening and closing component 4;

[0028] In order to better observe the gathering of the solid impurities and the free water in the drain pipe 2, the drain pipe 2 can be made of high-strength transparent material or an observation window can be arranged on the drain pipe 2.

[0029] In addition, the lowest position of the oil sealing piston column 32 is still located in the drain pipe 2 as a whole.

[0030] In the embodiment, because the top of the oil sealing piston column 32 is provided with the conical A curved surface 321, the solid impurities can slide into the drain pipe 2 through the gap between the oil sealing piston column 32 and the drain pipe 2 along the conical A curved surface 321, so that the solid impurities gathered on the upper column surface of the oil sealing piston column 32 are reduced, and because the top of the dirt bearing piston column 33 is provided with the conical B curved surface 331, when the dirt bearing piston column 33 slides out of the bottom of the drain pipe 2, the solid impurities gathered on the dirt bearing piston column 33 can slide down along the conical B curved surface 331.

[0031] Further, the bottom of the pollution-accepting piston column 33 is fixedly provided with two symmetrical curved guide plates 34, one end of the curved guide plate 34 is inserted into the limiting sliding groove 2a of the outer wall of the pollution discharge pipe 2 and is in sliding connection with the limiting sliding groove 2a, so as to avoid the problem that the oil sealing piston column 32 and the pollution-accepting piston column 33 are deflected in the pollution discharge pipe 2, and meanwhile, the curved guide plate 34 and the limiting sliding groove 2a can also improve the stability of the oil sealing piston column 32 and the pollution-accepting piston column 33 when they are lifted in the pollution discharge pipe 2.

[0032] Further, the outer wall of the oil sealing piston column 32 and the pollution-accepting piston column 33 is provided with a plurality of annular grooves distributed upwards and downwards, and a rubber sealing ring 35 is sleeved in each annular groove, so that the sealing effect of the oil sealing piston column 32 and the pollution-accepting piston column 33 is greatly improved, and the rubber sealing ring 35 can be regularly replaced by the staff.

[0033] In the embodiment of the utility model, please refer to Figures 1 to 6 The opening and closing component 4 comprises a U-shaped frame 41, the U-shaped frame 41 is fixedly installed on the outer wall of the pollution discharge pipe 2, two vertical installation rods 42 are fixedly installed in the U-shaped frame 41, a sliding seat 43 is arranged between the two installation rods 42 in a sliding mode, a spring 46 is sleeved on each installation rod 42, one end of the spring 46 is fixedly connected with the inner bottom wall of the U-shaped frame 41, the other end of the spring 46 is fixedly connected with the lower surface of the sliding seat 43, side plates 44 are fixedly installed on the two sides of the sliding seat 43, a middle connecting frame 45 is fixedly arranged between the two side plates 44, the middle connecting frame 45 is fixedly connected with the bottom of the pollution-accepting piston column 33 through screws, and a handle 47 is fixedly installed between the bottoms of the two side plates 44.

[0034] It should be noted that: when the solid impurities and part of the free water are discharged, the handle 47 is pulled down to make the sliding seat 43 slide downward along the installation rod 42 and compress the spring 46, so that the middle connecting frame 45 drives the pollution-accepting piston column 33 to slide downward, and the whole pollution valve group 3 is lowered, and after the solid impurities and part of the free water are discharged, the handle 47 is released, so that the pollution valve group 3 is reset under the action of the spring 46.

[0035] In order to eliminate the hidden danger that the spring 46 is rusted and loses elasticity due to contact with the cooling liquid, the spring 46 is made of stainless steel or titanium alloy spring, which improves corrosion resistance, and a polytetrafluoroethylene (PTFE) coating is coated on the surface of the spring 46 to enhance the rust prevention ability.

[0036] It should be noted that: the opening and closing component 4 of the utility model is not limited to the above structure, and a gas cylinder or a hydraulic cylinder can also be used as a driving part to drive the opening and closing component 4 to rise and fall.

[0037] The circuit and the control involved in the utility model are prior art, and will not be described in detail here.

[0038] The above is only an embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structure or equivalent process transformation using the utility model specification and the attached drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the utility model.

Claims

1. A pretreatment device for gear oil production, comprising a storage tank (1) for storing base oil for gear oil production, the bottom of the storage tank (1) is in a lower convex conical structure, and a blowdown pipe (2) is installed at the bottom of the conical tank body of the storage tank (1), characterized in that: a blowdown valve group (3) is installed in the blowdown pipe (2), and the blowdown valve group (3) comprises a middle connecting rod (31) which is coaxially arranged in the blowdown pipe (2), and an oil sealing piston column (32) and a sewage bearing piston column (33) are fixedly installed at the upper and lower ends of the middle connecting rod (31), respectively, a conical A curved surface (321) with an upper convex structure is arranged at the top of the oil sealing piston column (32), a conical B curved surface (331) with an upper convex structure is arranged at the top of the sewage bearing piston column (33), and the sewage bearing piston column (33) extends out of the blowdown pipe (2) at the bottom; a start-stop component (4) for driving the oil sealing piston column (32) and the sewage bearing piston column (33) to ascend and descend is further installed on the blowdown pipe (2).

2. The pretreatment apparatus for gear oil production according to claim 1, wherein The sewage bearing piston column (33) is fixedly installed with two symmetrical curved guide plates (34) at the bottom, and the other end of the curved guide plate (34) is inserted into and slidably connected with a limiting sliding groove (2a) opened in the outer pipe wall of the blowdown pipe (2).

3. The pretreatment apparatus for gear oil production according to claim 2, wherein The outer wall of the oil sealing piston column (32) and the sewage bearing piston column (33) is provided with a plurality of annular grooves distributed upward and downward, and a rubber sealing ring (35) is sleeved in each annular groove.

4. The pretreatment apparatus for gear oil production according to claim 1, wherein The start-stop component (4) comprises a U-shaped frame (41) fixedly installed on the outer pipe wall of the blowdown pipe (2), two vertically arranged installation rods (42) are fixedly installed in the U-shaped frame (41), a sliding seat (43) is slidably arranged between the two installation rods (42), a spring (46) is sleeved on each installation rod (42), side plates (44) are fixedly installed on both sides of the sliding seat (43), a middle connecting frame (45) is fixedly arranged between the two side plates (44), and the middle connecting frame (45) is fixedly connected with the bottom of the sewage bearing piston column (33) through screws.

5. The pretreatment apparatus for gear oil production according to claim 4, wherein One end of the spring (46) is fixedly connected with the inner bottom wall of the U-shaped frame (41), and the other end of the spring (46) is fixedly connected with the lower surface of the sliding seat (43).

6. The pretreatment apparatus for gear oil production according to claim 4, wherein A handle (47) is fixedly installed between the bottoms of the two side plates (44).

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